Allowance for Credit Losses - Schedule of Allowance for Credit Losses in Investment in Leases, Loans, Securities and Other Assets (Details) - USD ($) $ in Thousands		6 Months Ended		12 Months Ended
		Jun. 30, 2026		Dec. 31, 2025		Jun. 30, 2025	Dec. 31, 2024
Amortized Cost
Investments in leases – sales-type		$ 25,592,117		$ 24,625,749
Other assets – sales-type sub-leases		862,458		862,845
Total		49,513,014		47,537,444
Allowance
Investments in leases – sales-type		(1,014,762)		(919,186)
Allowance, total		(1,902,875)		(1,769,355)
Net Investment
Investments in leases – sales-type	[1]	24,577,355		23,706,563
Other assets – sales-type sub-leases		835,416		838,936
Net investment total		$ 47,610,139		$ 45,768,089
Allowance as a % of Amortized Cost
Investments in leases – sales-type		3.97%		3.73%
Other assets – sales-type sub-leases		3.14%		2.77%
Allowance as a percentage of amortized cost, total		3.84%		3.72%
CECL allowance for unfunded commitments		$ 22,948		$ 6,398
Financing Sub-Lease Commitments
Allowance
Other assets – sales-type sub-leases		(27,042)		(23,909)
Investments in leases - financing receivables, net
Amortized Cost
Investments in leases, loans and securities		20,049,009		19,467,011
Allowance
Investments in leases, loans and securities		(768,952)		(769,878)
Net Investment
Investments in leases, loans and securities	[1]	$ 19,280,057		$ 18,697,133
Allowance as a % of Amortized Cost
Investments in leases, loans and securities		3.84%		3.95%
Investments in loans and securities, net
Amortized Cost
Investments in leases, loans and securities		$ 3,009,430		$ 2,581,839
Allowance
Investments in leases, loans and securities		(92,119)		(56,382)
Net Investment
Investments in leases, loans and securities		$ 2,917,311	[1]	$ 2,525,457	[1]	$ 2,369,049	$ 1,651,533
Allowance as a % of Amortized Cost
Investments in leases, loans and securities		3.06%		2.18%

[1] As of June 30, 2026 and December 31, 2025, our Investments in leases - sales-type, Investments in leases - financing receivables, Investments in loans and securities, and Other assets (sales-type sub-leases) are net of allowance for credit losses of $1,014.8 million, $769.0 million, $92.1 million and $27.0 million, respectively, and $919.2 million, $769.9 million, $56.4 million and $23.9 million, respectively. Refer to Note 5 - Allowance for Credit Losses for further details.